www.xbitlabs.com/articles/other/display/lcd-guide_23.html
As for advantages, the IPS technology has always been better than TN+Film in terms of color reproduction and viewing angles. In fact, S-IPS matri ces leave no chance to other LCD technologies in the color-reproduction quality. They have soft and pleasant colors, which are natural and close to high-quality CRT monitors. Thats why all LCD monitors for professio nal work with color are based on S-IPS matrices, starting from relativel y inexpensive to hi-end models of the Eizo ColorEdge series with integra ted tools for custom hardware color-calibration. The viewing angles are a treat after TN matrices: you cant notice any di stortions of the image, sitting in front of an IPS matrix. Theres only one specific defect when youre looking at the screen from a side, bla ck color acquires a characteristic violet hue (by the way, this defect a llows telling an IPS matrix from any other), but the manufacturers are i mproving on this. The only real problem of the S-IPS technology is the low contrast ratio ( about 200:1, like that of an average TN+Film matrix). Thats not noticeable at daylight, but if youre working in a dimly lit room, you may be disappointed at the h ighlighting of the black color (coupled with the characteristic violet h ue when youre viewing the screen from a side). Alas, but due to the reasons explained in the previous section IPS matric es are fully driven off the market of 17 monitors (save for the Iiyama H430S model, whose high response time only makes it suitable for work wi th static images), so the users who are not satisfied with the low image quality of TN+Film matrices but willing to have a low response time hav e to consider 19 models. Fortunately, you can choose here as quite a nu mber of popular models are based on S-IPS matrices: LG Flatron L1910S an d L1910B, NEC MultiSync LCD1960NXi (dont confuse it with the LCD1960NX model, which is based on a matrix of another type), Philips Brilliance 1 90B5 and many others. As concerns their possible applications, monitors with S-IPS matrices are the only wise choice for serious work with color. Besides that, these m atrices seem to be more balanced than others with their excellent viewin g angles and low enough response time, so they will suit people who are choosing a monitor for games, movies and the Internet. TN+Film matrices that have recently entered the 19 monitor market, have a better respons e time but worse viewing angles (140 degrees only), and thus cant be ca lled a good choice for a big-diagonal monitor.
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